NYC-WTC_000227141

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ClientNam^ NYC BOE Volume (liters): 1824 Lab Group #: 6932 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm-

GRIP BOX: Masnification: 20,000 GRID ID. Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 3/4/02

Analysis Performed By; ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 7 EDS 1 No (Nonadb ] F B C M >=05 p >-5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements) i

resz IzsS TtW -Jt__ 1 a ---------------

Struct = > 0 5li > 5:1 .Aspect Ratio Grid acceptance:

v= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% ' B 1 C I .M '. >5u 7= EDS spectrum conlorming to laboratory holes or opaque areas —_____ identification criteria obsen/eo Chrysotile j ■AMPHIBOLES Amphibole F = Single Fiber Amosite S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Nofi-Asbestos Tremolite M = Matrix Actinolite Non-Identified | NSD = No Structures Detected

CI TY_2 IMC10 0’0 2 89 83 7 4

NYC-WTC_000227141